Dr. Zao Simon Zhang, MD

Dr. Zhang practices at The Queen's Medical Center in Honolulu, Hawaii, part of The Queen's Health Systems.

Dr. Zhang's NPI, 1801278288, was assigned on June 23, 2015. Dr. Zhang holds Hawaii license MD-19461.

Dr. Zhang's primary practice is The Queen's Medical Center, at 1301 Punchbowl St, Honolulu, HI 96813 in Honolulu County. The practice phone is (808) 538-9011.

Dr. Zhang's primary practice is The Queen's Medical Center in Honolulu, Hawaii, part of The Queen's Health Systems. The medical group on file is The Queen's Medical Center. Dmand AI also links Dr. Zhang to 1 more medical group, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zhang practices. Vendor and product names are available with a free account.

Internal medicine is Dr. Zhang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zhang is licensed in Hawaii.

CMS data shows 389 Medicare services from Dr. Zhang across 2 procedure codes in 2024, for 120 Medicare patients. Medicare paid $33,393 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 120 Medicare patients who saw Dr. Zhang in 2024. The largest group is 75 to 84, with 43 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 2.74, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Zhang's median patient age at 74, with 43% women.

In 2024, Dr. Zhang wrote 220 Medicare Part D claims for 105 patients. 90% of them were for generic drugs. CMS names the drug for 33 of them, across 2 drugs with 11 or more claims each, at $190 in total drug cost. In 2023, CMS named 36 claims across 3 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Zhang for performance year 2024, reported through an alternative payment model (APM). Dr. Zhang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 5 papers to Dr. Zhang, published from 2018 to 2022. 2018 was the busiest year, with 2. Dr. Zhang's most frequent co-authors are Heath H. Chung, MD, Louie Mar Alviz Gangcuangco, MD, MS and Rick Yutaka Hayashi, MD.

CMS Open Payments shows 45 general payments to Dr. Zhang from 13 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 73% of the total. Stryker Corporation paid the most, $1,458.